Microsoft's decision to hide KB identifiers from some Windows update support documents is unhelpful madness
For years, Microsoft has used KB identifiers (or knowledge base identifiers that take the form KBXXXXXXX) to refer to updates for Windows. As well as being a handy means of identifying a particular update, it also provides an easy way to cross reference the same updates across various pieces of documentation.
But last month Microsoft announced that it is changing the system. The company is not getting rid of KB identifiers, but it is changing the way they are used in release notes and support documentation. In many instances, the KB identifier will be hidden in the source code of web pages -- something even Microsoft concedes is "not ideal".